// Copyright (C) 2018 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.sub
description: Test Atomics.sub on arrays that allow atomic operations
includes: [testAtomics.js, testBigIntTypedArray.js]
features: [ArrayBuffer, Atomics, BigInt, DataView, SharedArrayBuffer, Symbol, TypedArray]
---*/
// Make it interesting - use non-zero byteOffsets and non-zero indexes.
// In-bounds boundary cases for indexing
// Atomics.store() computes an index from Idx in the same way as other
// Atomics operations, not quite like view[Idx].
function Test() {
    const sab = new SharedArrayBuffer(1024);
    const ab = new ArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 2);

    testWithBigIntTypedArrayConstructors(function(TA) {
      const view = new TA(sab, 32, 20);
      const control = new TA(ab, 0, 2);
      view[8] = 100n;
      assert.sameValue(Atomics.sub(view, 8, 10n), 100n, 'Atomics.sub(view, 8, 10n) returns 100n');
      assert.sameValue(view[8], 90n, 'The value of view[8] is 90n');
      assert.sameValue(Atomics.sub(view, 8, -5n), 90n, 'Atomics.sub(view, 8, -5n) returns 90n');
      assert.sameValue(view[8], 95n, 'The value of view[8] is 95');
      view[3] = -5n;
      control[0] = -5n;

      assert.sameValue(
        Atomics.sub(view, 3, 0n),
        control[0],
        'Atomics.sub(view, 3, 0n) returns the value of `control[0]` (-5n)'
      );

      control[0] = 12345n;
      view[3] = 12345n;

      assert.sameValue(
        Atomics.sub(view, 3, 0n),
        control[0],
        'Atomics.sub(view, 3, 0n) returns the value of `control[0]` (12345n)'
      );

      control[0] = 123456789n;
      view[3] = 123456789n;

      assert.sameValue(
        Atomics.sub(view, 3, 0n),
        control[0],
        'Atomics.sub(view, 3, 0n) returns the value of `control[0]` (123456789n)'
      );

      testWithAtomicsInBoundsIndices(function(IdxGen) {
        let Idx = IdxGen(view);
        view.fill(0n);
        Atomics.store(view, Idx, 37n);
        assert.sameValue(Atomics.sub(view, Idx, 0n), 37n, 'Atomics.sub(view, Idx, 0n) returns 37n');
      });
    });
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
